# Dremio: Query engines not scaling up

- Impact (vendor’s label): major
- Status: resolved
- Started: 2022-05-10 05:32 UTC · Resolved: 2022-05-10 06:49 UTC · Duration: 1.3 h
- Updates: 5 · Affected components: Dremio Cloud - US - Site Availability, Site Availability
- [Vendor status page: https://stspg.io/n3zy2brf28qz](https://stspg.io/n3zy2brf28qz)
- [Company: Dremio](https://rewindex.com/company/dremio.md)

## Summary

Dremio Cloud - US had a major incident: query engines failed to scale up on demand, causing query failures; already-running engines remained unaffected. It started at 2022-05-10 05:32 UTC and was resolved at 2022-05-10 06:49 UTC, lasting 1 h 16 min. Dremio reported a successful mitigation and confirmed engine scaling was working normally. _(machine-written, sol)_
## Timeline of updates

- **investigating** 2022-05-10 05:32 UTC: Query engines are not scaling up on demand leading to query failures. Engines that are already running will continue to server queries without issue. We are currently investigating the engine scaling issue.
- **investigating** 2022-05-10 06:21 UTC: We are continuing to investigate the issue. One potential mitigation has been applied.  We are evaluating the effectiveness of the change.
- **monitoring** 2022-05-10 06:40 UTC: A fix has been implemented and we are monitoring the results.
- **monitoring** 2022-05-10 06:41 UTC: A mitigation has been applied and appears successful. Monitoring for rebound.
- **resolved** 2022-05-10 06:49 UTC: This incident has been resolved. Engine scaling working normally.

## Rewindex changes for this incident

- 2022-05-10 05:32 UTC: [Major incident: Query engines not scaling up](https://rewindex.com/change/i935376967f427f.md)


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Canonical: https://rewindex.com/company/dremio/incidents/vt6ksbvl03pc · Markdown: https://rewindex.com/company/dremio/incidents/vt6ksbvl03pc.md · JSON: https://rewindex.com/api/v1/companies/dremio/incidents/vt6ksbvl03pc · Generated 2026-10-18T13:25:48.164Z